C Interview debugging questions | Find error in snippet type C Interview questions

Debugging questions are common in C Language interviews. In this post you can find some example c interview questions related to debugging.

Find error in following c snippet?

#include <stdio.h>

#include <conio.h>

int x;

int x=0;

int x;

int main(){

   printf("%d",x); 

   getch();

   return 0;

}

Answer:

No error. Global variables can have several declarations in C. Same is true for function declarations.

Find error in following c snippet?

#include <stdio.h>

#include <conio.h>

int x;

int x=0;

int x;

int x=1;

int main(){

   printf("%d",x); 

   getch();

   return 0;

}

Answer:

Error in Line number 6. Global variables can have several declarations in C but only one definition. Same is true for function declarations.

Also check out C interview example programs Questions exercises

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